At Watts & Ergon, , we’ve designed and installed hundreds of systems across Dubai and the UAE. This comprehensive guide reveals exactly how much you can save, the real costs, and how to maximize your return.
Dubai enjoys some of the highest solar irradiance in the world — around 5.5 to 6 peak sun hours per day. This means a well-designed system generates massive amounts of clean energy, especially during peak summer when your air conditioning runs hardest.
DEWA’s Shams Dubai initiative allows net metering: excess power is credited to your bill at highly favorable rates, effectively turning your roof into a money-saving asset.
DEWA uses a progressive slab tariff system. Higher consumption pushes you into more expensive tiers.
| Monthly Consumption (kWh) | Rate (AED/kWh) | Typical Impact |
|---|---|---|
| 0 – 2,000 | 0.230 | Green tier |
| 2,001 – 4,000 | 0.280 | Yellow tier |
| 4,001 – 6,000 | 0.320 | Orange tier |
| 6,001+ | 0.380 + fuel surcharge | Red tier — most villas |
Prices have stabilized thanks to technology improvements and competitive supply chains.
| System Size | Typical Cost (AED) | Suitable For | Est. Annual Generation |
|---|---|---|---|
| 5 kW | AED 15,000 – 22,000 | Small villa / apartment | 7,000 – 8,500 kWh |
| 10 kW | AED 28,000 – 45,000 | Standard 3-4 bedroom villa | 14,000 – 17,000 kWh |
| 15-20 kW | AED 55,000 – 85,000 | Large villa / small commercial | 21,000 – 28,000 kWh |
| System Size | Est. Annual Savings (AED) | Payback Period | 25-Year Savings (AED) |
|---|---|---|---|
| 5 kW | AED 4,000 – 7,000 | 4 – 6 years | AED 120,000 – 200,000+ |
| 10 kW | AED 10,000 – 15,000 | 4 – 5.5 years | AED 280,000 – 450,000+ |
| 20 kW | AED 18,000 – 28,000 | 4 – 6 years | AED 500,000 – 800,000+ |
Under Shams Dubai, your solar system first powers your home. Any excess is exported to the DEWA grid and credited at up to 84% of the retail rate. Credits roll over, dramatically reducing or eliminating your bill.
With time-of-use considerations and increasing grid reliability, hybrid systems with batteries are becoming popular for villas wanting full backup during outages or maximum self-consumption.
Get a free, no-obligation solar assessment tailored to your villa or business in Dubai.
Request Your Free Quote TodayThis guide is for informational purposes only. Actual savings depend on consumption, roof conditions, and current DEWA tariffs. Always consult DEWA and a certified professional. Data compiled from DEWA publications and 2026 industry reports.
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